© 2002-2 PRINTED IN JAPAN
B51-8626-00 (N) 1509
RAPID CHARGER
KSC-25
SERVICE MANUAL
Cabinet (Upper)
(A02-3655-08)
AC adapter (120V AC 60Hz)
(W08-0942-05)
Relay terminal
(E23-1190-08) x 5
Badge
(B43-1141-08)
PARTS LIST
New Parts.
Ref. No.
Address New parts
Parts No.
Description
Destination
A02-3655-08
Cabinet
Upper
A02-3656-08
Cabinet
Bottom
B43-1141-08
Badge
B62-1607-00
Instruction manual
E03-0200-08
DC jack
E23-1190-08
Relay terminal
G13-1547-08
Cushion
N80-2610-45
Screw
W02-3641-08
Charger unit
W08-0942-05
AC adapter
120VAC 60Hz
K
This KSC-25 service manual is the revised edition of the
KSC-25 information in the TK-2140 (B51-8602-00) and TK-
3140 (B51-8603-00) service manual.
2
Power on (LED : off)
No output power initialization
Are
output terminals
shorted?
Output release power
Vt : 4.7
3.2~3.5V
Power release
Yes
Yes
P.S.
P.S.
P.S.
Yes
Yes
Does T contact?
No
Does S contact?
Power release after LED
on 1sec, only pre-charge
CV 8.4V 1 time for 1.5 second
Ni-MH, Ni-Cd Vs : 1.2V
0V
Li-ion Vs : 1.2V
3.2~3.5V
No
No
No
5
°C+2°C,1°C T
47°C+2°C,1°C
Is the
battery abnormal?
(Shorted)
Is the
each terminal to short
another terminal
No touch
effect in each terminal
No
No
No
Yes
Yes
Yes
Is Li-ion?
Yes
No
Fast charge
(LED color : Red) 1200mA
±5%
Ni-Cd, Ni-MH : Constant current charging
Not sensing for 4min
Vmin
4.8V±0.1V
Vmax
10.8V±0.1V
Timer
512sec
Timer
256sec
96mV
V 72mV
T
55°C±4°C
Timer
120min
+12min, 10min
When battery
voltage is 8.9V+0.1V, 0V or
more,
V 0
V 0
After 30min
from starting fast charging
V/12min
282mV/12min
Timer
128sec
Trickle charging
120~160mA
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
No
No
No
No
No
No
No
No
Yes
No
No
No
No
No
Fast charge (LED color : Red)
Li-ion : Constant current & constant voltage charging
CC mode : 945mA
±5%, CV mode : 8.4V+0%, 2%
Not sensing for 4min
Vmin
4.8V±0.1V
Trickle charging
120~160mA
No
V terminal
8.85V
No
T
55°C±4°C
No
Timer
180min
+18min, 10min
Timer
180min
+18min, 10min
Vs
3.29V±0.1V
(V = 7.9V)
Red flash
I = 0mA
No
No
Total
10H timer
Yes
Charging current
100±20mA
Charging current off
(I = 0mA)
Yes
LED color : Red flash
LED color : Red
Red LED flash
Abnormal
reset?
Yes
No
Total timer
10H
Yes
No
LED color : Green
Trickle 30~90mA
Charge (LED color : Green)
Cut-off
LED color : Green
CHARGER FLOW CHART
KSC-25
3
R
G
JK1
DC
JACK
P1
D6
M5
M6
C26
C8
D5
C16
JK7
JK10
R15
R20
D4
JK1
C7
+
+
+
+
++
S
T
Q2
BC
E
JK2
D2
D3
L1
R19
JK3
JK6
R48
C19
JK5
JK4
R14
R47
JK8
JK9
R24
R43
C14
C2
C18
R44
Y1
C4
C5
R23
U2
1
8
9
16
U1
C1
JK12
JK11
R27
R29
LED1
U3
1
16
8
9
M4
M3
J05
R11
B4
R1
C20
R17
C6
B13
R12
B12
J02
J17
B11
C36
C38
C33
C37
B22
R8
Q1
R4
R6
J01
C30
C21
C22
R7
R30
R5
R34
U4
1
7 8
14
R32
R33
R45
R31
J12
J08
J09
J13
J10
J11
B16
C31
R26
Q3
D1
R3
R2
B8
B18
C11
C27
R46
R37
R36
R38
R42
B17
C24
B7
B6
B9
B19
U5
1
4
5
8
B20
B21
R35
C13
R39
R16
R13
R18
R25
C9
C25
R21
U6
B10
C3
R49
J06
J07
C10
R22
Q4
J03
R28
C35
C34
C29
R10
R9
R41
C23
C17
J14
B14
B15
C12
J16
J15
R40
C15
C32
B3
B1
B2
C28
J04
PC BOARD VIEWS
CHARGER UNIT (W02-3641-08) Component side view
CHARGER UNIT (W02-3641-08) Foil side view
KSC-25
R24
8.87K
R23
20K
Vcc
Vcc
Vcc
B13
D6
P1
JK1
DC
JACK
1
2
LED1
(G)
(R)
1
2
3
4
5
11
8
97
5
6
4
10
13
15
12
13
15
14
16
12
3
12
11
7
1
2
6
3
4
10
9
8
5
B11
B12
C38
471P
C37
471P
B22
B16
R30
R32
100K
R33
11K
C31
102P
C14
4.7
16V
R34
100K
R36
200K
R38
100K
R35
20K
R37
1K
R41
7.15K
R20
22K
R42
7.15K
C18
101P
C19
104P
C16
104P
R47
15K
R46
4.3K
R48
47K
47K
C35
471P
C34
471P
R8
200
R7
200
J09
0
R26
R28
10K
Q2
R11
R12
470
R22
39K
R21
47K
R25
10K
R27
10K
R29
1.5K
2.7K
C10
102P
C13
104P
C24
102P
C3
104P
R5
10K
R6
10K
470
10V
470
25V
C2
C1
C22
Y1
6MHZ
C5
20P
U6
C30
102P
C20
102P
C21
102P
C29
102P
102P
C33
471P
C4
20P
C23
102P
B8
D1
R3
470
B9
R2
4.7K
R13
3K
R16
3K
R14
100K
R18
100K
R17
10K
R19
470
J06
0
J02
0
J07
0
D4
B1
B3
B2
B4
D5
C32
C26
102P
C8
104P
C7
220
16V
D2
D3
200
R15
0.1
C6
103P
C9
103P
C25
102P
C29
102P
C28
102P
C11
104P
L1
330
µ
2
13
16
14
C36
471P
R49
120
U3
Q4
/CHB
VDD
XO/R
XI
VSS
U2
/CVB
ICTRL1
ICTRL2
SCTRL
PER
PER
B15
C12
101P
B14
B20
B18
C17
101P
B17
B19
B21
J12
0
R44
5.1K
J13
0
J14
0
J16
0
J15
0
R31
300K
2
J08
0
Vcc
Vcc
Vcc
/ICHG
BTYPE
BA
TB
/F
AST
/FULL
CTRL
TSB
5
4
+
U4A
+
13
6
7
1
5
11
10
Q3
+
+
+
+
Vcc
Vcc
U4D
J11
0
C15
104P
J10
0
R43
10K
R45
10K
R39
1K
R40
100K
+
U5B
U4B
U4C
6
7
9
8
14
B10
R1
4.7K
B7
B6
+
+
U1
R4
6.8K
R9
47K
R10
47K
Q1
3
2
4
8
+
U5A
Vcc
+
:
Ni-MH,
Li-ion
+
:
Ni-Cd
T
:
T
e
rminal
for
detection
temperature
S
:
T
e
rminal
for
distinction
of
battery
:
Ground
terminal
Q1,3
:2SA2712
Q2
:2SA1757
or
2SA1469
Q4
:PK7002
U1
:PJ431
U2
:AMC-04
U3
:TL494
or
UPC494C
U4
:LM339
or
BA10339F
U5
:BA10393
U6
:T600D
D1
:RLS4148N
D2~5
:SB140
D6
:SB240
LED1
:M059AGW
-A-K
SCHEMATIC DIAGRAM
4
KSC-25
KSC-25
BATTERY PACK
KNB-24L (Li-ion Battery Pack : 1400mAh)
s External View
KNB-25A (Ni-Cd Battery Pack : 1200mAh)
s External View
KNB-26N (Ni-MH Battery Pack : 2000mAh)
s External View
5
S
T
S
1.8M
DISCHARGING TERMINALS
CHARGING TERMINALS
S
S
T
560k
DISCHARGING TERMINALS
CHARGING TERMINALS
S
S
T
220k
DISCHARGING TERMINALS
CHARGING TERMINALS
s Schematic Diagram
s Schematic Diagram
s Schematic Diagram